SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* MAXWELL WILLIAM S (Last) (First) (Middle) ONE NORTH END AVENUE WORLD FINANCIAL CENTER (Street) NEW YORK NY 10282 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 05/10/2007	3. Issuer Name and Ticker or Trading Symbol NYMEX HOLDINGS INC [ NMX ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year) 05/16/2007
			6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	180,760	I	By ONEOK Energy Services ( 1 )

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	( 2 )	( 2 )	Common Stock	335	( 3 )	D

Explanation of Responses:

1. The 180,760 shares of NYMEX Holdings, Inc. are owned by ONEOK Energy Services ("ONEOK"). As president of ONEOK, Mr. Maxwell has voting control over the 180,760 shares owned by ONEOK and is therefore deemed to beneficially own such shares.

2. The Units vest in four equal quarterly installments beginning on June 1, 2007, as long as Mr. Maxwell remains on the Board of Directors, subject to additional terms contained in the grant and, if applicable, other contracts.

3. Represents deferred stock units that can be exercised 6 months after a director leaves the board. Each Unit represents a contingent right to receive one share of NYMEX Holdings, Inc. common stock.

	/s/William Maxwell	05/23/2007
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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